Toothbrush



FIG. 1 is a right front perspective view of a toothbrush according to the new design;

FIG. 2 is a left front perspective view thereof;

FIG. 3 is a left rear perspective view thereof;

FIG. 4 is a right rear perspective view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a left side view thereof;

FIG. 8 is a right side view thereof;

FIG. 9 is a top view thereof; and,

FIG. 10 is a bottom view thereof.

The broken lines showing the remainder of the head portion and the entire handle portion of the toothbrush form no part of the claimed design. 

CLAIM The ornamental design for a toothbrush, as shown and described. 